I have heard of a celebrated picture of the Last Supper,--and if I do not mistake, it is said to be the work of some of the Flemish masters: in this picture all the personages are drawn in a manner suitable to the solemnity of the occasion; but the painter has filled the void under the table with a dog gnawing bones. Who does not see the possibility of such an incident, and, at the same time, the absurdity of introducing it on such an occasion! Innumerable such cases might be stated. It is not the incompatibility or agreeableness of incidents, characters, or sentiments with the probable in fact, but with propriety in design, that admits or excludes them from a place in any composition. We may as well urge that stones, sand, clay, and metals lie in a certain manner in the earth, as a reason for building with these materials and in that manner, as for writing according to the accidental disposition of characters in Nature. I have, I am afraid, been longer than it might seem necessary in refuting such a notion; but such authority can only be opposed by a good deal of reason. We are not to forget that a play is, or ought to be, a very short composition; that, if one passion or disposition is to be wrought up with tolerable success, I believe it is as much as can in any reason be expected. If there be scenes of distress and scenes of humor, they must either be in a double or single plot. If there be a double plot, there are in fact two. If they be in checkered scenes of serious and comic, you are obliged continually to break both the thread of the story and the continuity of the passion,--if in the same scene, as Mrs. V. seems to recommend, it is needless to observe how absurd the mixture must be, and how little adapted to answer the genuine end of any passion. It is odd to observe the progress of bad taste: for this mixed passion being universally proscribed in the regions of tragedy, it has taken refuge and shelter in comedy, where it seems firmly established, though no reason can be assigned why we may not laugh in the one as well as weep in the other. The true reason of this mixture is to be sought for in the manners which are prevalent amongst a people. It has become very fashionable to affect delicacy, tenderness of heart, and fine feeling, and to shun all imputation of rusticity. Much mirth is very foreign to this character; they have introduced, therefore, a sort of neutral writing.